A regiospecific synthesis of 2-azaanthraquinon-3-ones via a hetero Diels-Alder reaction with bromonaphthoquinones
作者:Boufelja Bouammali、Félix Pautet、Houda Fillion、Mohamed Soufiaoui
DOI:10.1016/s0040-4020(01)89895-1
日期:1993.4
reaction 2-azadienes and 2- or 3-bromo-5-substituted naphthoquinones (R3=OH, OAc, OMe) led to a regiospecific synthesis of the corresponding 2-azaanthraquinones-3-ones. The results indicate that the bromine atom exerts a stronger regiochemical control in these cycloaddition than the 5-substituent.
Diels-Alder反应中的2-氮杂二烯和2-或3-溴-5-取代的萘醌(R 3 = OH,OAc,OMe)导致相应的2-氮杂蒽醌-3-酮的区域特异性合成。结果表明,在这些环加成中,溴原子比5-取代基具有更强的区域化学控制能力。